Payload and header inspector

Format JSON bodies and extract webhook-id / timestamp / signature lines for debugging. Event envelope.

Client-side only. Secrets and payloads never leave your browser.

Headers (one per line)

JSON body

Parsed headers

{
  "webhook-id": "msg_01HABC",
  "webhook-timestamp": "1757131200",
  "webhook-signature": "v1,example",
  "content-type": "application/json"
}

Formatted body

Click Pretty-print JSON